Storage-battery plate



Jan, 1, 1929. LGZUYS R. T. MURRAY ET AL STORAGE BATTERY PLATE Filed Dec.5, 1.927

INVEN TOR S EA mom) 7'. Mammy P 1 E FRANK M KELLY BY I Patented Jan. 1,1929.

STATES PATENT OFFICE.-

INDIANA.

STORAGE-BATTERY PLATE.

Application filed December 5, 1927. flerial 110,237,822.

Our present invention, in its broad aspect, has reference toimprovements in storage battery plates wherein thefront and back of theplate are formed in sections, one section having flanges along its edgesto provide a chamber for receiving active material, as for instanceleadoxide, and the other section being carried between and attached tothe flanges to provide a cover; and both sections being slotted toprovide access of the electrolyte to the lead oxide or other filler.More particularly it is our purpose to provide a storage battery platewherein shedding of the fillerof active material is prevented, whereinelectrolyte or acid absorption by the active material is facilitated,and longer life of the battery insured, and wherein a more rigid plateis provided although much more active material is carried thereby, andwherein a more 0 uniform production of current is insured.

Furthermore we are enabled by our construction to modify the size andform of our plate without loss of eificiency for various types and sizesof storage batteries, and any type of standard separator, spacer, orinsulator may be used in conjunction with it. Our plate can be formedeither positive or negative. and we are enabled to provide. a greatercapacity or more active material per square inch of plate than others onthe market with which we are ac uainted.

ur plate combines the advantages of what is known as the Plants type ofplate and the,

filled or pasted plate. The chief advantage of the Plante type lies inthe fact that each complete cycleor the operation of charge anddischarge of the batteryfinds the plate increasing in strength, but thistype of plate has been found unsatisfactory for automobiles, whereas ourplate may be used with any automobile battery, and the active materialis protected and cannot be lost. Furthermore, our plate will supplycurrent up to 1100 amperes if that be necessary and this is a greatimprovement over the Plante type of plate for the high starting currentof approximately 425 amperes for the initial starting motor load cannotbe reached by the Plante type of plate and accordingly they cannot beused for starters for automobiles.

Other and equally important objects and advantages of our invention maybe briefly defined as follows; first, the elements of our plate can bequickly and cheaply cast in a common mold; second, ribs of antimony leador other material are provided to stiffen and rigidify the structure ofthe plate; third, the plate and filling element includes but three partswhich can be quickly assembled, and; fourth, our plates can bemanufactured in quantities at relatively small cost, and as sembled inany standard type of storage battery.

Other and equally important objects and advantages will become apparentas the description of our invention proceeds, but while we have in thepresent instance defined for the sake of illustration a specific form ofour invention, it will be understood that we do not desire thereby tolimit ourselves except as may be indicated by the scope of the claimsappendedhereto and forming a part of this specification.

In the drawings wherein we have illustrated our invention Figure 1 is aperspective view of one section of our plate, herein called thecontainer section for active material;

Figure 2 is a section taken on the line 22 of Figure 1;

Figure 3 is a plan view of our cover section, and v Figure 4 is asectional view of a slight modification wherein the active material,lead oxide, is rolled out in the form of a sheet and inserted betweenthe two sections.

In the drawings wherein like characters of reference are used throughoutthe several views to designate like or similar parts The numeral (1)designates the container section of our plate which has aback (2) andflanges along its edges forming a top (3), bottom (4), and sides (5)providing a space (6) for containing active material, lead oxide or thelike designated (7). In the space (6) and formed on the back (2) areribs (8) and the back is slotted as at (9). The so called V-type ofslots have been found to give satisfaction. The section (1) ispreferably formed of antimony lead or other acid resisting material andcan be cast in one piece in one operation.

The cover section (10) fits between the top (3) and bottom l) and sides(5) of the section 1), and is welded, soldered, or braised or otherwisesecured thereon to completed the assembly when the active material (7)has been placed in the space (6). The section (10) is slotted as at 11).

As shown in Figure 2 the active material (7) may be so placed in thespace (6) as to extend through and into the slots (9) and (11) fillingthem, in which case the lead oxide is applied in a plastic state andpres sure exerted thereon, or on the plates (1) and (10) when they areassembled. Or in Figure 4- the lead oxide may be inserted in the spaceas a sheet, or the like, in which case it does not extend into the slots(9) and (11). the filler is lead oxide, and the plate body antimonylead, other materials may be used and the plate may be formed eitherpositive or negative.

lVhile it is believed that the manner of constructing, assembling, andoperating our plate is believed to be apparent from the foregoing, it ispointed out that when the plates and (10) are assembled the activematerial (7) is cou'ipletely enclosed and protected in the space (6)although access of the electrolyte is had through the slots (9) and(11). Accordingly a greatly improved and highly desirable plateisprovided wherein relatively more active material is carried by theplate and protected by its unique construction.

\Vhile in the foregoing there has been illustrated in the drawing anddescriied in the specification such combination and arrangement ofelements as constitute the pre ferred embodiments of our invention, itis nevertheless desired to emphasize the fact that interpretation of theinvention should only be conclusive when made in the light of thesubjoined claims.

We claim 1'. A storage battery plate comprising a lVhereas we havestated above that body having a section formed with flanged edgesproviding a chamber, an. unflanged cover section seating between theflanged edges and secured thereto by uniting its edges to the flangededges to close the chamber, active material in the chamber, and therespective sections being slotted to give access oi the electrolyte tothe active material.

A storage battery plate comprising an acid resisting body formed insections, one section having lateral flanges along its edges providingan enclosed chamber for receiving active material therein, the othersection receivable between the flanges to lieflush with the tdgeportions of the flanges and secured thereto byuniting its edges to theflanged portions to form a cover for thecliamber, and both sectionsprovided with slots giving access of electrolyte to the active material.

3. A storage battery plate comprising a rectangular body continuouslyflanged along its edges to form an enclosed chamber for receiving activematerial, spaced. ribs formed on the body and extending part way intothe chamber, a cover member for the chamber adapted to be receivedbetween the flanges flush with the edge portions of the flanges andsecured thereto by uniting its edge portions with the flanges, and thebody and cover provided with slots, communicating with the chamber togive access of electrolyte to the active material.

In testimony whereof, we aiiix our signatures hereunto.

RAYMOND T. MURRAY. FRANK M. KELLY.

